The vulnerability identified as CVE-2025-13558 affects the Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress, versions up to and including 8.7.0. The root cause is a missing authorization check (CWE-862) in the 'deleteUserCcDraftPost' function, which is responsible for deleting user draft posts. This omission allows any authenticated user with at least Subscriber-level privileges to change the status of arbitrary posts to 'trash', effectively deleting them from public view. The vulnerability does not require user interaction and can be exploited remotely over the network (AV:N), with low attack complexity (AC:L). The attacker must be authenticated (PR:L) but does not need elevated privileges beyond Subscriber. The impact affects the integrity and availability of content managed by the plugin, as posts can be deleted without proper authorization. The CVSS v3.1 base score is 5.4 (medium severity), reflecting the moderate impact and ease of exploitation. No patches or exploits are currently publicly available, but the vulnerability is published and should be addressed promptly. This flaw could be leveraged to disrupt content management workflows, cause data loss, or degrade the reputation of affected websites by removing scheduled social media posts or blog content.

For European organizations, especially those relying on WordPress and the Blog2Social plugin for content scheduling and social media automation, this vulnerability poses a risk of unauthorized content deletion. This can lead to operational disruptions, loss of critical marketing or communication posts, and potential reputational damage. Organizations in sectors such as media, e-commerce, and public services that use WordPress extensively for digital presence are particularly vulnerable. The ability for low-privileged users to delete posts could also be exploited by insider threats or compromised accounts, increasing the risk of sabotage or accidental data loss. Although confidentiality is not impacted, the integrity and availability of content are at risk, which could affect business continuity and customer trust. The absence of known exploits reduces immediate risk, but the vulnerability's public disclosure necessitates proactive mitigation to prevent future exploitation.

1. Monitor the Blog2Social plugin vendor for official patches addressing CVE-2025-13558 and apply updates immediately upon release. 2. Until a patch is available, restrict user roles and permissions to minimize the number of users with Subscriber-level or higher access, especially on sites with multiple contributors. 3. Implement custom WordPress hooks or filters to enforce capability checks on the 'deleteUserCcDraftPost' function, effectively adding missing authorization controls. 4. Regularly audit user accounts and remove or downgrade unnecessary privileges to reduce the attack surface. 5. Employ web application firewalls (WAFs) with rules to detect and block suspicious requests targeting the vulnerable function. 6. Maintain regular backups of WordPress content and database to enable rapid recovery from unauthorized deletions. 7. Educate site administrators and content managers about the vulnerability and encourage vigilance for unusual post deletions or user activity.